Base | Representation |
---|---|
bin | 11100100001101110… |
… | …11001001100011001 |
3 | 1110112100111222201210 |
4 | 32100313121030121 |
5 | 222331211421410 |
6 | 11011420533333 |
7 | 1051346155110 |
oct | 162067311431 |
9 | 43470458653 |
10 | 15315342105 |
11 | 654a125228 |
12 | 2b750b1249 |
13 | 15a0c8910b |
14 | a5406cc77 |
15 | 5e9854220 |
hex | 390dd9319 |
15315342105 has 64 divisors (see below), whose sum is σ = 29754109440. Its totient is φ = 6577127424.
The previous prime is 15315342101. The next prime is 15315342131. The reversal of 15315342105 is 50124351351.
15315342105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 15315342105 - 22 = 15315342101 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (15315342101) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44697 + ... + 180633.
It is an arithmetic number, because the mean of its divisors is an integer number (464907960).
Almost surely, 215315342105 is an apocalyptic number.
15315342105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
15315342105 is a deficient number, since it is larger than the sum of its proper divisors (14438767335).
15315342105 is a wasteful number, since it uses less digits than its factorization.
15315342105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 136018.
The product of its (nonzero) digits is 9000, while the sum is 30.
Adding to 15315342105 its reverse (50124351351), we get a palindrome (65439693456).
The spelling of 15315342105 in words is "fifteen billion, three hundred fifteen million, three hundred forty-two thousand, one hundred five".
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